2) Bald tires are more prone to blowouts, and when a tire gives out-especially at high speeds-it can cause the driver to lose control of the vehicle. Obviously, that can lead to a serious accident. 3) Because they don't grip the road nearly as well as newer models, bald tires can increase a vehicle's stopping distance.That can be especially serious on wet roads, in stop-and-go traffic, and wherever pedestrians are present.According to a 2012 study by the Rubber Manufacturers of America, more than 13% of the vehicles on the road have bald tires.) Because they have very little or no tread depth, bald tires do not allow water to pass between treads. That means that cars with bald tires often hydroplane on wet roads; they actually ride on the surface of the water, and that renders the steering wheel useless, at least temporarily.
If your puppy wants to sleep, let him sleep. Your puppy needs 18 to 20 hours of sleep a day. He'll get some of this sleep during the day in the form of short naps. You should establish a bedtime routine, however, so that as your puppy grows into an adult dog he learns to get most of his sleep at night.
By 16 weeks, most puppies should begin sleeping through the night, though there may still be occasional nights your puppy needs to get up and go outside. On average, you can expect your puppy to sleep six to 10 hours at night. Puppies spend 16 to 20 hours sleeping every day depending upon their age. This means that, in addition to her 6 to 10 hours of nightly sleep, you can expect your puppy to spend as much time during the day asleep as she spends awake.