Have you checked console for errors at wake?
I just did.
All messages:
2012-10-01 6:36:01.422 PM mdworker[792]: Unable to talk to lsboxd
2012-10-01 6:36:01.426 PM mdworker[793]: Unable to talk to lsboxd
2012-10-01 6:36:01.485 PM sandboxd[794]: ([792]) mdworker(792) deny mach-lookup com.apple.ls.boxd
2012-10-01 6:36:01.000 PM kernel[0]: Sandbox: sandboxd(794) deny mach-lookup com.apple.coresymbolicationd
2012-10-01 6:36:01.490 PM sandboxd[794]: ([793]) mdworker(793) deny mach-lookup com.apple.ls.boxd
2012-10-01 6:36:29.119 PM WindowServer[74]: Created shield window 0x2ed for display 0x04280380
2012-10-01 6:36:29.119 PM WindowServer[74]: device_generate_desktop_screenshot: authw 0x0(0), shield 0x0(0)
2012-10-01 6:36:29.000 PM kernel[0]: Sound assertion in AppleMikeyI2C at line 267
2012-10-01 6:36:29.000 PM kernel[0]: Sound assertion in AppleMikeyI2C_TS3A8235 at line 249
2012-10-01 6:36:29.000 PM kernel[0]: Sound assertion in AppleMikeyI2C_TS3A8235 at line 335
2012-10-01 6:36:29.000 PM kernel[0]: Sound assertion in AppleMikeyDevice at line 842
2012-10-01 6:36:29.000 PM kernel[0]: Sound assertion in AppleMikeyDevice at line 818
2012-10-01 6:36:29.000 PM kernel[0]: AirPort_Brcm43xx:

owerChange: System Sleep
2012-10-01 6:36:29.140 PM WindowServer[74]: device_generate_lock_screen_screenshot: authw 0x0(0), shield 0x0(0)
2012-10-01 6:36:31.000 PM kernel[0]: IOThunderboltSwitch(0x0)::listenerCallbackStatic - Thunderbolt HPD packet for route = 0x0 port = 11 unplug = 0
2012-10-01 6:36:31.000 PM kernel[0]: IOThunderboltSwitch(0x0)::listenerCallbackStatic - Thunderbolt HPD packet for route = 0x0 port = 12 unplug = 0
2012-10-01 6:36:36.000 PM kernel[0]: Wake reason: EC.LidOpen (User)
2012-10-01 6:36:36.000 PM kernel[0]: AirPort_Brcm43xx:

owerChange: System Wake - Full Wake/ Dark Wake / Maintenance wake
2012-10-01 6:36:36.000 PM kernel[0]: Previous Sleep Cause: 5
2012-10-01 6:36:36.000 PM kernel[0]: wlEvent: en0 en0 Link DOWN virtIf = 0
2012-10-01 6:36:36.000 PM kernel[0]: AirPort: Link Down on en0. Reason 8 (Disassociated because station leaving).
2012-10-01 6:36:36.000 PM kernel[0]: en0::IO80211Interface:

ostMessage bssid changed
2012-10-01 6:36:36.000 PM kernel[0]: en0: 802.11d country code set to 'X0'.
2012-10-01 6:36:36.000 PM kernel[0]: en0: Supported channels 1 2 3 4 5 6 7 8 9 10 11 36 40 44 48 52 56 60 64 100 104 108 112 116 120 124 128 132 136 140 149 153 157 161 165
2012-10-01 6:36:36.000 PM kernel[0]: IOThunderboltSwitch(0x0)::listenerCallbackStatic - Thunderbolt HPD packet for route = 0x0 port = 11 unplug = 0
2012-10-01 6:36:36.000 PM kernel[0]: IOThunderboltSwitch(0x0)::listenerCallbackStatic - Thunderbolt HPD packet for route = 0x0 port = 12 unplug = 0
2012-10-01 6:36:36.000 PM kernel[0]: TBT W (2): 0x0100 [x]
2012-10-01 6:36:36.576 PM hidd[56]: MultitouchHID: device bootloaded
2012-10-01 6:36:36.000 PM kernel[0]: AppleUSBMultitouchDriver::checkStatus - received Status Packet, Payload 2: device was reinitialized
2012-10-01 6:36:37.096 PM configd[17]: network changed: v4(en0-:142.151.145.200) DNS- Proxy- SMB
2012-10-01 6:36:37.111 PM configd[17]: setting hostname to "*****-MacBook-Pro.local"
2012-10-01 6:36:37.309 PM WindowServer[74]: handle_will_sleep_auth_and_shield_windows: no action for lock state 1
2012-10-01 6:36:37.000 PM kernel[0]: en0: 802.11d country code set to 'CA'.
2012-10-01 6:36:37.000 PM kernel[0]: en0: Supported channels 1 2 3 4 5 6 7 8 9 10 11 36 40 44 48 52 56 60 64 100 104 108 112 116 120 124 128 132 136 140 149 153 157 161 165
2012-10-01 6:36:37.000 PM kernel[0]: MacAuthEvent en0 Auth result for: 00:0c:e6:08:32:00 Auth timed out
2012-10-01 6:36:37.000 PM kernel[0]: MacAuthEvent en0 Auth result for: 00:0c:e6:08:32:40 MAC AUTH succeeded
2012-10-01 6:36:37.000 PM kernel[0]: wlEvent: en0 en0 Link UP virtIf = 0
2012-10-01 6:36:37.000 PM kernel[0]: AirPort: Link Up on en0
2012-10-01 6:36:37.000 PM kernel[0]: en0: BSSID changed to 00:0c:e6:08:32:40
2012-10-01 6:36:37.000 PM kernel[0]: en0::IO80211Interface:

ostMessage bssid changed
2012-10-01 6:36:38.000 PM kernel[0]: AirPort: RSN handshake complete on en0
2012-10-01 6:36:38.640 PM airportd[797]: _doAutoJoin: Already associated to “utmres”. Bailing on auto-join.
2012-10-01 6:36:38.653 PM airportd[797]: _doAutoJoin: Already associated to “utmres”. Bailing on auto-join.
2012-10-01 6:36:39.245 PM configd[17]: network changed: v4(en0+:142.151.145.200) DNS+ Proxy+ SMB
2012-10-01 6:36:39.254 PM UserEventAgent[11]: Captive: en0: Not probing '****' (protected network)
2012-10-01 6:36:39.257 PM configd[17]: network changed: v4(en0!:142.151.145.200) DNS Proxy SMB
2012-10-01 6:36:39.259 PM configd[17]: setting hostname to "guest-**.ca"
Diagnostics and Usage Messages:
2012-10-01 6:36:20.479 PM Apple80211 framework[132]:
com.apple.message.domain: com.apple.wifi.timeout.scan
com.apple.message.signature: Success
com.apple.message.result: pass
com.apple.message.value: 3235.000000
com.apple.message.summarize: YES
2012-10-01 6:36:23.706 PM Apple80211 framework[132]:
com.apple.message.domain: com.apple.wifi.timeout.scan
com.apple.message.signature: Success
com.apple.message.result: pass
com.apple.message.value: 3208.000000
com.apple.message.summarize: YES
2012-10-01 6:36:28.891 PM loginwindow[52]: loginwindow SleepWakeCallback WILL sleep
com.apple.message.domain: com.apple.loginwindow.logs
com.apple.message.signature: will sleep event received
com.apple.message.uuid: 61BD6412-445F-4383-846C-E2A4549D633B
com.apple.message.result: noop
2012-10-01 6:36:28.915 PM powerd[18]: Clamshell Sleep Sleep: Using AC (Charge:100%)
com.apple.message.domain: com.apple.powermanagement.Sleep
com.apple.message.signature: Success
com.apple.message.value: 25
com.apple.message.result: Success
com.apple.message.uuid: 61BD6412-445F-4383-846C-E2A4549D633B
com.apple.powermanagement: pmlog
2012-10-01 6:36:28.916 PM powerd[18]: PID 68(apsd) Released ApplePushServiceTask "com.apple.apsd-waitingformessages-push.apple.com" 00:01:08 id:0xc000005d2 Aggregate:0x40
com.apple.message.domain: com.apple.powermanagement.Assertions
Process: 68
Action: Released
AssertionName: ApplePushServiceTask
RetainCount: 0
com.apple.powermanagement: pmlog
2012-10-01 6:36:28.920 PM powerd[18]: Clients requested wake events: [proc=powerd request=BTIntervalWaitToDarkWake inDelta=1800]
com.apple.message.uuid: 61BD6412-445F-4383-846C-E2A4549D633B
com.apple.message.domain: com.apple.powermanagement.WakeRequests
com.apple.powermanagement: pmlog
2012-10-01 6:36:28.920 PM powerd[18]: PM scheduled RTC wake event: MaintenanceImmediate inDelta=1799.99
com.apple.message.uuid: 61BD6412-445F-4383-846C-E2A4549D633B
com.apple.message.domain: com.apple.powermanagement.WakeRequests
com.apple.powermanagement: pmlog
2012-10-01 6:36:36.011 PM loginwindow[52]: loginwindow SleepWakeCallback will power on, Currenttime:10/1/2012 6:36:36.011 PM - Waketime:10/1/2012 6:36:33.240 PM = Deltatime:2.770767033
com.apple.message.domain: com.apple.loginwindow.logs
com.apple.message.signature: will power on event received
com.apple.message.uuid: 61BD6412-445F-4383-846C-E2A4549D633B
com.apple.message.value: 2.770767033
com.apple.message.value2: 0
com.apple.message.result: noop
2012-10-01 6:36:36.062 PM configd[17]:
com.apple.message.domain: com.apple.wifi.timeout.xpc
com.apple.message.signature: Success
com.apple.message.signature2: DRIVER_EVENT
com.apple.message.result: pass
com.apple.message.value: 27.000000
com.apple.message.summarize: YES
2012-10-01 6:36:36.065 PM configd[17]:
com.apple.message.domain: com.apple.wifi.timeout.xpc
com.apple.message.signature: Success
com.apple.message.signature2: DRIVER_EVENT
com.apple.message.result: pass
com.apple.message.value: 1.000000
com.apple.message.summarize: YES
2012-10-01 6:36:36.070 PM configd[17]:
com.apple.message.domain: com.apple.wifi.timeout.xpc
com.apple.message.signature: Success
com.apple.message.signature2: DRIVER_EVENT
com.apple.message.result: pass
com.apple.message.value: 1.000000
com.apple.message.summarize: YES
2012-10-01 6:36:36.078 PM configd[17]:
com.apple.message.domain: com.apple.wifi.timeout.xpc
com.apple.message.signature: Success
com.apple.message.signature2: DRIVER_EVENT
com.apple.message.result: pass
com.apple.message.value: 1.000000
com.apple.message.summarize: YES
2012-10-01 6:36:36.082 PM configd[17]:
com.apple.message.domain: com.apple.wifi.timeout.xpc
com.apple.message.signature: Success
com.apple.message.signature2: SC_CHANGED_EVENT
com.apple.message.result: pass
com.apple.message.value: 1.000000
com.apple.message.summarize: YES
2012-10-01 6:36:36.084 PM configd[17]:
com.apple.message.domain: com.apple.wifi.timeout.xpc
com.apple.message.signature: Success
com.apple.message.signature2: DLIL_EVENT
com.apple.message.result: pass
com.apple.message.value: 1.000000
com.apple.message.summarize: YES
2012-10-01 6:36:36.131 PM configd[17]:
com.apple.message.domain: com.apple.wifi.timeout.xpc
com.apple.message.signature: Success
com.apple.message.signature2: SC_CHANGED_EVENT
com.apple.message.result: pass
com.apple.message.value: 1.000000
com.apple.message.summarize: YES
2012-10-01 6:36:36.135 PM configd[17]:
com.apple.message.signature: Success
com.apple.message.result: pass
com.apple.message.value: 1.000000
com.apple.message.domain: com.apple.wifi.timeout.xpc
com.apple.message.signature2: SC_CHANGED_EVENT
com.apple.message.summarize: YES
2012-10-01 6:36:37.102 PM configd[17]:
com.apple.message.domain: com.apple.wifi.timeout.xpc
com.apple.message.signature: Success
com.apple.message.signature2: SC_CHANGED_EVENT
com.apple.message.result: pass
com.apple.message.value: 2.000000
com.apple.message.summarize: YES
2012-10-01 6:36:37.112 PM Apple80211 framework[797]:
com.apple.message.domain: com.apple.wifi.timeout.scan
com.apple.message.signature: Success
com.apple.message.result: pass
com.apple.message.value: 946.000000
com.apple.message.summarize: YES
2012-10-01 6:36:37.347 PM configd[17]:
com.apple.message.domain: com.apple.wifi.timeout.xpc
com.apple.message.signature: Success
com.apple.message.signature2: SC_CHANGED_EVENT
com.apple.message.result: pass
com.apple.message.value: 1.000000
com.apple.message.summarize: YES
2012-10-01 6:36:37.350 PM configd[17]:
com.apple.message.domain: com.apple.wifi.timeout.xpc
com.apple.message.signature: Success
com.apple.message.signature2: SC_CHANGED_EVENT
com.apple.message.result: pass
com.apple.message.value: 1.000000
com.apple.message.summarize: YES
2012-10-01 6:36:37.387 PM powerd[18]: Wake due to EC.LidOpen/Lid Open: Using AC (Charge:100%)
com.apple.message.signature: Success
com.apple.message.uuid: 61BD6412-445F-4383-846C-E2A4549D633B
com.apple.message.domain: com.apple.powermanagement.Wake
com.apple.message.result: Success
com.apple.powermanagement: pmlog
2012-10-01 6:36:37.389 PM configd[17]:
com.apple.message.domain: com.apple.wifi.timeout.xpc
com.apple.message.signature: Success
com.apple.message.signature2: DLIL_EVENT
com.apple.message.result: pass
com.apple.message.value: 1.000000
com.apple.message.summarize: YES
2012-10-01 6:36:37.810 PM airportd[797]:
com.apple.message.domain: com.apple.wifi.timeout.assoc
com.apple.message.signature: Success
com.apple.message.result: pass
com.apple.message.value: 380.000000
com.apple.message.summarize: YES
2012-10-01 6:36:38.627 PM Apple80211 framework[797]:
com.apple.message.domain: com.apple.wifi.timeout.xpc
com.apple.message.signature: Success
com.apple.message.signature2: ASSOC_EVENT
com.apple.message.result: pass
com.apple.message.value: 1320.000000
com.apple.message.summarize: YES
2012-10-01 6:36:38.627 PM airportd[797]:
com.apple.message.domain: com.apple.wifi.autojoin.multi
com.apple.message.signature: Success
com.apple.message.signature2: NoRetry
com.apple.message.signature3: 2GHz
com.apple.message.signature4: FullWake
com.apple.message.result: pass
com.apple.message.value: 2.491495
com.apple.message.value2: 0.000000
com.apple.message.value3: 1.000000
com.apple.message.value4: -55.000000
com.apple.message.value5: -92.000000
2012-10-01 6:36:40.300 PM airportd[797]:
com.apple.message.domain: com.apple.wifi.networkReachability
com.apple.message.signature: Success
com.apple.message.signature4: FullWake
com.apple.message.result: pass
com.apple.message.value: 1.447833
com.apple.message.value2: 1.457413
com.apple.message.value3: 2.488974
2012-10-01 6:36:47.438 PM powerd[18]: PID 68(apsd) Created ApplePushServiceTask "com.apple.apsd-waitingformessages-push.apple.com" 00:00:08 id:0xc00000603 Aggregate:0x40
com.apple.message.domain: com.apple.powermanagement.Assertions
Process: 68
Action: Created
AssertionName: ApplePushServiceTask
com.apple.powermanagement: pmlog