A spectator takes a nap while waiting for the riders in the Galibier during the ninth stage of the 94th Tour de France cycling race between Val d'Isère and Briançon, 17 July 2007. JOE KLAMAR / AFP

Even professional cyclists tend to get bored during Tour de France’s flat stages. Last year, despite his podium win during the first stage of the 103rd edition, Slovakian rider Peter Sagan replied when asked for his thoughts on the stage : “Boring”.

Lire en français : Le guide de la sieste pendant le Tour de France 2017 ou comment ne manquer aucun moment fort

In order to avoid these boring moments watching the peloton on flat stages, those times when only an unexpected breakaway could take you out of a lethargic July afternoon, we put together all of the Tour’s data on climbs and sprints.

For the 2017 Tour de France, thanks to the race director Christian Prud’homme, the best moment to take a nap is right after lunch: you should nap every day watching the Tour until 2:20PM or 2:30 PM (Paris time). Then it’s sprinting or climbing time.

When to nap during the 2017 Tour de France? Each stage is divided in 20 minutes periods – which is the ideal nap duration according to sleep-researcher Damien Léger –, each period has a color depending on if there's something to watch, or if it's the right time to nap.