Unsuited

• Out of place
• Not suitable in a part
• I go out for a bit and sweat, ultimately unfit?
• Off the mark
• Not congruous
• Awkward getting some sleep in it
• Doze off during it? Not appropriate

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Inapt \In*apt"\, a. [Pref. in- not + apt: cf. F. inapte. Cf. Inept .] Unapt; not apt; unsuitable; inept. -- In*apt"ly , adv. -- In*apt"ness , n.

Wiktionary Word definitions in Wiktionary
a. unapt; not apt; unsuitable; inept.

Douglas Harper's Etymology Dictionary Word definitions in Douglas Harper's Etymology Dictionary
1744, from in- (1) "not, opposite of" + apt . Related: Inaptly ; inaptness .