I wear plain Jane tanks and just use pads. They aren't just super tight but tight enough the pad stays in place but I don't toss and turn a lot. I was lucky and Wal mart had cotton tanks on sale for $1.50 so I racked up bf LO was born.
I love my Cake nursing bras from Nordstrom. Worth the money. I have target tank tops and target sleep nursing bras, but nothing compares to my cake bras.
I am also wearing a comfy target Gillian o' malley bra. Very soft and does not have an underwire. I bought two of them and am very happy with them.so comfortable to sleep in.
I prefer underwire, i know it's not healthy to sleep in them butif i wear anything else i see my boobs sag before my eyes, i wear 1 i hot from destination maternity, it's pricey but really comfortable, but i got another 1 from the same place in the same size and it's horrible, you have to try it on
I use the walmart sleep bras at night and the walmart nursing bras during the day. The day bras actually have decent support whereas the sleep bras are terrible for support, but hold the disposable pads for what I need.
Re: For those who are breastfeeding...
The nursing bra I have is this one, I just bought it in a few colors: https://m.shop.nordstrom.com/s/cake-cotton-candy-seamless-nursing-bra/3361818?cm_mmc=Google_Product_Ads_pla_online-_-datafeed-_-women:underwear_lingerie:bra-_-595521&mr:referralID=426631f7-0283-11e5-ba34-001b2166c2c0
I am also wearing a comfy target Gillian o' malley bra. Very soft and does not have an underwire. I bought two of them and am very happy with them.so comfortable to sleep in.