Nothing beyond aloe vera cream has ever worked for me. In the past I’ve used a product offered by the mail order company Avon (more of a pale tan cream with aloe vera in it), but in recent times I’ve used this green goop aloe vera gel and I much prefer it, it makes my burn feel cold and chilly. You’ll also want to drink lots of water, you probably got a bit dehydrated in the sun, and drinking water never hurts. Next time, set your cellphone alarm as a backup if you’re taking a nap… sunburns/tanning lead to a higher risk of skin cancer, so it’s not really a habit you want to get into.