my baby now 4month+.
mittens: stop at 9th week.
botties: stop at 12th week and change to baby socks as botties are too small for him. now wear sock at daytime. at bedtime, i prefer to let him wear those covered-feet pants as this can release his feet during sleep.
and i read this from books: experts suggest that baby need to stop to wear mittens when they reach 2 months old. bcos at this age, they start to use their hand to explore and learn. so if still limit his hand's movement by mitten, will block their learning process & ability. just to remember to trim short their finger nails, and soon they will learn not to scratch their own face as it's hurt. they also suggest that not to stop baby to eat their finger as this also a learning step.