WingOn carry brand 0/3 baby bed and they're having sale starting Jun 22nd to Jun 24th. Seems up to 20% discount, but not sure apply to bed or not. You may want to go to check it out.
If you want to see/ compare more bb bed, you can go to Eugene as they've got over 10 types of bb bed.(except 0/3 and C-Max) But they seldom hv discount and it's a bit expensive. Moreover, you may go to Jusco, Apita and other Japanese dept. store to see.