Time for the most popular post of mine on this site for all you newbies out there, is about the power of a 20 minute nap (or as was well known in the 90's, the power nap.
I have found it has been a lifesaver for me - when my eyes glaze over & my mind goes foggy, I disappear & go off for a 20 minute nap.
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Set my alarm for 20 mins, have a glass of water (cos that makes u get up when the alarm goes off because you'll need the toilet. Closing your eyes again & goin bak t sleep is so easy ;o ) but once I've got up, I feel totally refreshed in about a minute. (basically like I've had a full nights sleep).
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You might be scepticle as t how much difference this will make, I was when I was told about it, but what have u got t lose ??? Basically 20 minutes & yet it could be so beneficial to the rest of your life as it has been t mine
If U really, really don't feel like getting up after the first 20 minutes reset your alarm for another 20 minutes (supposedly U go into a deeper stage of sleep after 26minutes & I have found 20 is always good for me.
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Anyway, I'll stop waffling - give it a go ;o)