Yeshaya 58:13 states that Shabbat is called oneg (delight). I have seen several different items described as oneg shabbos including taking a nap, marital relations, enjoying food at the shabbat meals ...
Is one allowed to pump air into an inflatable mattress on Shabbos? Is this a problem of tikkun cli, makeh b'patish, etc? (Or any other problem.) What about if the mattress was inflated Erev Shabbos ...