Books like The Door Into Summer

It is 1970, and electronics engineer Dan Davis has finally made the invention of a lifetime: a household robot with extraordinary abilities, destined to dramatically change the landscape of everyday routine. Then, with wild success just within reach, Dan's greedy partner and even greedier fiancée steal his work and leave him penniless, and trick him into taking the long sleep—suspended animation for thirty years.

Liked The Door Into Summer by Robert A. Heinlein? Here's what readers who loved it picked up next.

The Mote in God's Eye by Larry Niven (1974) · 4.06★
Rendezvous with Rama by Arthur C. Clarke (1973) · 4.06★
Lucifer's Hammer by Larry Niven (1977) · 3.98★
Nightfall by Isaac Asimov (1970) · 4.01★
The Naked Sun by Isaac Asimov (1957) · 4.12★
Gateway by Frederik Pohl (1977) · 4.07★
Childhood's End by Arthur C. Clarke (1953) · 4.09★
Old Man's War by John Scalzi (2005) · 4.23★
Way Station by Clifford D. Simak (1963) · 4.03★
Dune by Frank Herbert (1965) · 4.19★
Lord of Light by Roger Zelazny (1967) · 4.1★
The Stainless Steel Rat by Harry Harrison (1961) · 3.93★