Collection for Rosy H.
Here are my suggestions for good bras (and undies and PJs) that may work well for you.
Natori Feathers in 36A
Bliss Perfection Soft Cup in 36A
Hanky Panky Padded Wireless in Medium
Cosabella Never Say Never Padded Bralet in Medium.
Commando Minimalist V Neck in S/M
All lounge/Pjs/Underwear, take your usual size of medium.