My initial suggestion would be to sleep 3-4 hours twice a day, you could be continually waking in your deep sleep instead of light/rem, which can ironically mak

My initial suggestion would be to sleep 3-4 hours twice a day, you could be continually waking in your deep sleep instead of light/rem, which can ironically make you feel more tired. If sleeping 4 hours in a night is overall better, it might be worth trying to see if you can get your total of 8 hours by only sleeping 4 at a time. I regularly feel more awake and alert if I only sleep 6 hours, in fact I've regularly been asleep just after midnight, up for work at 6:30 and not started to feel tired until 2-3am. Another thing I've learnt is that exercise is very beneficial to your quality of sleep. I work construction and not only do I feel alert for longer periods, but when I do sleep I usually sleep great. A few things I've noticed that hurt my sleeping: warm room (my bedroom is like 10C right now); lights in room (even little LED lights are killer; I used to live in a rural area and the suburbs still kill me some nights); noise again is a major sleep disturber for me, however I actually found having a fish tank in my room (with the filter going) did amazing for my sleep. As an aside: My diet features ridiculous quantities of dairy, which has many vitamins (like D) which could be of benefit if you have problems sleeping. I'd also recommend against ever taking sleeping pills, they actually disturb good sleep by keeping you in light sleep rather than letting you get into deep/rem.