Maybe personal is ok, especially for the ladies as lord lnow i am not a lady or even a gentleman.
What was recommended and worked really well for me and others of both sexes, was the 2 hospital gown idea, one as it should be, tying the back and one worn as a housecoat, for lounging and walking the halls, joshing nurses and patients alike....flashing ok too if it strikes your fancy and almost seems legal in a cardiac ward.
You will likely be peeing often, in days post surgery and post catheter and the above wardrobe is awfully convenient. Furthermore it allows attending staff to monitor extremities, arms and legs and they do this often, so you want them to have the quick viduals to ensure, no bruising etc...not sure socks are even a good idea, but easy slip on slippers definately a good idea, for getting out of bed and around....keep warm if you need, but you will likely find it warm already.
In summary a cardiac ward and the 5-7 days spent there, are not much of a fashion place, including the nursing staff....darn
Gil