Why do men sleep in underwear? - Quora
Which clothes are dangerous to sleep in? - Quora
What is the most comfortable nightwear? - Quora
Is it healthier to sleep naked rather than in pyjamas?, Health & wellbeing
How often do you buy new pajamas? - Quora
Should people wear pajamas to bed? - Quora
What do you wear when you sleep? - Quora
Where can we buy comfy pajama sets? - Quora
Is it socially acceptable for women to wear pajamas or sweats outside? What are the reasons for this acceptance or non-acceptance? - Quora
What (if any) clothes do you wear while sleeping? What country are you from? What is the average temperature in your region? What is your religion? - Quora
What are your observations about the unisexual benefits of sleeping nude? - Quora