When can a toddler use a baby blanket?

Kaitlin

My 14mo son has been fighting bed time sooo much the last month or so.. so I’ve been putting a small baby blanket on him while I brush my teeth and get ready for bed. As soon as I take the blanket off, very carefully I might add, he’s up screaming within a half hour.. when can I start letting him use a baby blanket safely?

Tired and haven’t had a full nights sleep in two months... thank you teething and regression