Mulching is always a concern as to use or not, as well as what to use.
You can use PennMulch or Amturf type products that are pelleted paper that expands with rain. Hydromulch is shredded paper product and one of the oldest means used is straw. Straw can be very messy, as well as straw may carry weed seeds into your seeding, but serves its purpose as far as mulching goes.
Mulching helps keep your seeding in place, stabilizing the area and helps keep the area with moisture which is critical to seed germination. The mulch will help maintain the water it receives through either rain or watering. At the same time, the mulch will help eliminate wash-outs from heavy rains. Mulch also helps in seeded areas on slopes,, hills or banks to keep the seed form washouts.
Along with the site preparation and weather, water becomes the third most important element.
Inconsistent watering is the predominant reason for Turfgrass failure. Keep the seedbed moist until all seedlings have germinated. Water as evenly as possible and do not buddle. Watering is best in the morning. As your turf continues to germinate and grow, you are able to apply more water before the fear of puddles. Continue to water until the turf is filling in complete and you are beginning to mow. Once the turf is established, cut back you're watering to once every 7-10 days, depending on rain. Water then only once during this period but water anywhere from 1 to 1½ inches per watering.
Begin mowing once the turf has begun to tiller (fill-in) and has reached a height of about 2-3 inches. Keep your mower blades sharp and always use as a rule of thumb to not cut off anymore than ⅓ of the leaf blade. Mow at a high height and mow often.
Proper watering and mowing, along with a Bonide 4 Phase fertilizer grogram, will provide a very healthy and attractive turf.