The Door Into Summer

So good you don’t even notice it’s science fiction. It’s more along the lines of a mystery a la Ross Macdonald or Raymond Chandler. At one point I had to flip to the copyright page to see when exactly Heinlein penned this one- 1957! And he totally nails all sorts of things– presages the ipad with newspapers that flip when you press the lower section, the line of robots that help with cleaning (Ahem, Roomba!).
Our hero is sent into the Long Sleep (cryogenically frozen), after being swindled out of his share of the business he created, as the inventor of several robots. He discovers that time travel has been invented, and creates a situation where he can go back in time right before he enters into the Sleep, to set things right.
One nitpick is that I’m getting quite tired of happy endings.