Can you wear a liner to bed?

Can you wear a liner to bed depends on what type of liner you mean, but generally yes, you can wear certain liners to bed if they are comfortable and appropriate, though some liners are not designed for sleepwear. For example, panty liners are thin absorbent liners worn in underwear for light protection and can be worn to bed if needed for light discharge or spotting, though not necessary for everyone. Clothing liners like cami liners, slip liners, or thermal base layer liners can be worn to bed as comfortable sleep layer for warmth. Coat liners or bag liners are not meant to be worn to bed. Makeup liners like eyeliner should not be worn to bed as it can irritate eyes and skin, should be removed before sleep. Sleeping bag liners are specifically designed to be used inside sleeping bag and can be worn to bed in that context for hygiene and warmth. So yes, you can wear certain fabric liners like thermal liners or panty liners to bed if comfortable, but remove makeup liners before bed.