You can also try  Provigil to improve your daytime sleepiness this medication is approved by FDA. This medication helps to promote wakefulness and bring alertness to your body. The ideal dose for this medication is 200mg. So you can buy Provigil to overcome sleep disorders. 

Even modafinil is very good medicine to treat work shift sleep disorders. it also helps in memory-enhancing. 
buy modafinil 200mg for better sleep management. these modafinil tablets are FDA approved and they can be taken