ብሔራዊ የእንቅልፍ ፋውንዴሽን፥ አዋቂዎች በየቀኑ ከ7 እስከ 9 ሰዓታት በቂ እንቅልፍ ካገኙ ለጤናቸው በተለይ ደግሞ ለቆዳ ጥሩ መሆኑን ይመክራል።
The National Sleep Foundation recommends that adults rest for seven to nine hours each night and if you don't get enough sleep, your skin can become quite dry.