hyper child

Anyone else's baby all of a sudden a hyper mess before bed?! She used to always fall asleep on the boob or at least be very drowsy before going into her cot. Now she is absolutely mental before bed 😂😂 babbling away, kissing me, jumping up and down on me like I'm a trampoline... then she just goes hyper in her cot for about 15 mins then goes silent & sleeps 😂! What's happening?!?!