A friend was talking to me about her napping. She claims she doesn't feel refreshed afterwards and will often sleep from one to two hours mid afternoons. She asked if anyone had the same problem and if we had any suggestions for her.
When looking on line I found a study that suggested the shorter the naps the better (no more than an hour.) One study showed that long naps can cause a higher mortality rate and higher respiratory disease rates in older adults. Whether we accept these results or not, I think the rule would be not to take long regular naps, but to keep them within less than an hour.
As for my friend, I'm not sure what makes a nap refreshing. Any ideas for her?