Sleep Tracking - Days 1 thru 5

Here's the data from the first 5 nights of sleep tracking.  Hopefully  by the end of this challenge i'll have a better understanding of my sleeping habits and patterns.

Night of	Bedtime	Wake	Sleep Time	Naps?	Wake During Night?	Caffeine?	ZMA?	What did i do before bed?	Wellbeing (1 - 5)
10/1/2014	1.5	10.25	8.75	No	Many times	2p and 5p	No	Beer, book, tv	3
10/2/2014	2.25	11	8.75	No	Many times	2p and 5p	No	Beer and tv	2
10/3/2014	0	10	10	No	Few	12, 430 and 10p	No	tv	3
10/4/2014	11.5	7.5	8	No	3 times	?	No	movie	3
10/5/2014	11	10	11	No	Once	830a and 4p	No	beer and ps4	3

Further info:

• In the bed and wake sections, 1.5 means 1:30, etc.  I work afternoon turns during the week so I typically stay up until at least 1 in the morning.  It's great not having to wake up to an alarm.
• ZMA is a supplement that is said to help achieve deeper levels of REM sleep.  I have a couple of bottles but I haven't been using them for the challenge yet.
• Wellbeing is on a scale of 1 - 5 where 1 is feeling terrible and 5 is feeling fantastic.  3 is normal.