Seat guru claims the air canada is an open suite. On Air Canada's site, it says the business class seats are lie flat. I guarantee you, the head is not parallel with the foot. My seat was not broken as all other seats had the same slight angle. I'm telling you, some airlines advertise lie flat but are not exactly flat. I recall United's long-haul flight had the same slight incline at the head. Perhaps it's a North American configuration? I wish there was a site that verified their claims.
You can see in the last picture of this review that the head is angled slightly. I know it's hard to complain when you have a bed and are not stuck in economy, but for a light airplane sleeper like me, I'm pretty sure this contributed to getting only 3 hours of sleep rather than 6.
http://www.airlinereporter.com/2015/...-tokyo-denver/