Sleigh most notably made his name at United Counties League side Heanor Town, where he scored a remarkable 147 goals in 174 appearances.
That tally left him just seven goals behind the Lions' all-time record goalscorer, Kieran Debrouwer.
Sleigh enjoyed a two-year stint at Northern Premier League side Stafford Rangers before leaving in August 2021 to return to Heanor.
His arrival will be a welcome boost for the Moatmen, whose 2022/23 tally of 34 goals in 38 league matches was the third-lowest of any side in the Pitching In NPL Midlands Division.
Sleigh will link up with his new team-mates when they return for pre-season training next week.
He also becomes the club's second signing in as many days, with former Belper Town defender Jayden Cotterill also making the move to the Moat Ground.
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