Running IOS 8.3 Safari I can only access your submenus if the top nav is a mega menu as used on Sofas and Couches, Living Rooms, etc. Not on Beds. Running the latest Chrome on the ipad I can access the submenus on Beds. There is definitely a difference between native dropdown and mega manus.
http://demo.snstheme.com/sns-toronto/index.php/sofa-couches.html
http://demo.snstheme.com/sns-toronto/index.php/beds.html
