Anchorage, Alaska gets 19 hours and 22 minutes of daylight on the summer solstice. The running joke is that tourists tell their kids to be back by sun down and never see them again. It is fantastic to take a bike ride at 10 pm without need for a headlamp or start a hike after dinner completing it easily in the light. I notice that I sleep quite a bit less in the summer and this unfortunately goes for my children as well. Blackout shades are popular for the bedroom, but they don't make them for tents. Fortunately, a company is making them for strollers and car seats!
The car seat version ($32) attaches easily and can be put on without waking a sleeping babe. You simply pull the elasticized top over the top of the car seat, affix the two velcro straps to the carrying handle and then pull the bottom (also elasticized) over the foot of the car seat. The website says it has almost universal fit with infant car seats. It also has the added benefit of blocking wind on cold days!
The stroller version ($32) is also easy, but took me a bit more time. This larger sun screen has a variety of straps and velcro to let you fit it to most strollers. It fit on my Bob jogging stroller without problem. I set the top and then tried a few straps until it held nicely. The website also reports the SnoozeShade fits on most jogging, umbrella, and pram type strollers. I also tired it on my hiking backpack and think it could work nicely to keep both the sun and mosquitoes off of packed kiddos. (The company also makes a more expensive ($48) stroller model with more bells and whistles that looks fantastic!)
I would have loved the car seat version on our first camping trip. The kiddo easily sleeps in his car seat and this cover would have blocked out the light letting us sleep a bit. I also had a hard time jogging trying to adjust the stroller's shade and keeping blankets from slipping off during the run. The SnoozeShade would have been so nice to keep the kiddo shaded! My older son is quite sensitive to the sun and also crowds - he loves the shade as it makes him a "cave" (his word!).