5 month old sleeping a lot more

Eleni • Fri, Apr 29

My 5 month old has had the same schedule since about 2 months. She sleeps through the night 8pm-7am then naps every 2 hours for 30 minutes. Lately her 30 minute naps have gotten longer. 2 hrs sometimes. Is this a growth spurt? Could this potentially stop her from sleeping at night