The good news is, there are several DIY dog enrichment toys for those rainy days that will keep your pup busy indoors. These include hide-and-seek cardboard toys, a snuffle mat, and a tug-of-war rope.

"Snuffle mats are great feeding enrichment devices, particularly for very hyper dogs or dogs that have mobility issues," Haug says. "The sniffing process is very calming for dogs, so we use these ...

Carolyn Boost your dog's mental stimulation and support their love of sniffing with this play feeding mat. Just put your pup's regular dry food or treats inside the mat, and they get to forage for ...

A fifth breed known for its love of napping is the sad-faced English Bulldog, which can doze for 12 to 14 hours every day.